Patents by Inventor Sharlene Renee Williams

Sharlene Renee Williams has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20180273755
    Abstract: Disclosed herein are lignin-furfuryl alcohol compositions, lignin-furfuryl alcohol-resole (LFR) compositions comprising lignin-furfuryl alcohol composition and phenolic resoles and LFR foams derived from such LFR compositions. Disclosed herein are LFR foams comprising a polymeric phase defining a plurality of open cells and a plurality of closed cells, and a gas phase comprising one or more blowing agents disposed in at least a portion of the plurality of closed cells, wherein the polymeric phase is derived from LFR compositions.
    Type: Application
    Filed: November 10, 2015
    Publication date: September 27, 2018
    Inventors: Michael W. Cobb, Hari Babu Sunkara, Sharlene Renee Williams
  • Patent number: 9790342
    Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: October 17, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
  • Patent number: 9701803
    Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin, a first monomer, and a second monomer, wherein the first monomer comprises formaldehyde, paraformaldehyde, furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), or mixtures thereof, and the second monomer comprises furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: July 11, 2017
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W Cobb, Vincent Galante, Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
  • Publication number: 20160083547
    Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.
    Type: Application
    Filed: December 3, 2015
    Publication date: March 24, 2016
    Inventors: MICHAEL W. COBB, MARK ANDREW HARMER, VIVEK KAPUR, ANN Y. LIAUW, SHARLENE RENEE WILLIAMS
  • Patent number: 9260579
    Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: February 16, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y Liauw, Sharlene Renee Williams
  • Patent number: 9150506
    Abstract: Described are sulfonated aromatic compounds and methods of making said compounds. The compounds are useful as monomers in a variety of polymers such as polyamides and polyesters, and can impart flame resistant properties.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 6, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Justin W. Chan, Michael W Cobb, Sharlene Renee Williams
  • Patent number: 9150693
    Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 6, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Peter A Brown, Justin W. Chan, Michael W Cobb, Sharlene Renee Williams
  • Patent number: 9150789
    Abstract: The invention is directed to sulfonated aromatic polyesters and methods of making said polymers. These polymers are useful as fibers and other articles. The polymer has a property of increased flame retardancy.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: October 6, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Justin W. Chan, Michael W Cobb, Surbhi Mahajan, Sharlene Renee Williams
  • Publication number: 20150044927
    Abstract: Disclosed herein are compositions and article made therefrom and processes of making them. The composition comprises a polymer, the polymer comprising a repeat unit of formula shown below: wherein the polymer is derived from an aromatic diamine comprising m-phenylene diamine, and an aromatic diacid or a derivative thereof comprising furan dicarboxylic acid or derivative thereof.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 12, 2015
    Applicant: E I Du Pont DE Nemours and Company
    Inventors: Justin W. Chan, Fredrik Nederberg, Bhuma Rajagopalan, Sharlene Renee Williams, Michael W. Cobb
  • Publication number: 20140184371
    Abstract: A nonwoven web of poly(phenylene-1,3,4-oxadiazole) and polymetaphenylene isopthalamide. was found to have greater retention of tensile strength than kraft paper after immersion in oil at high temperature, making it useful as an insulation material for transformers.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Sharlene Renee Williams, Michael W. Cobb
  • Publication number: 20140093719
    Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin and a monomer, wherein the monomer comprises furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 3, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Mark Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
  • Publication number: 20140093720
    Abstract: Disclosed are foam compositions and processes to form mixed tannin-phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a mixed-resin derived from a phenol, a tannin, and a first monomer, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising one or more blowing agents.
    Type: Application
    Filed: May 25, 2012
    Publication date: April 3, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W. Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y. Liauw, Sharlene Renee Williams
  • Publication number: 20140087175
    Abstract: Disclosed are foam compositions and processes to form closed-cell tannin-based foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a tannin-based resin derived from a tannin, a first monomer, and a second monomer, wherein the first monomer comprises formaldehyde, paraformaldehyde, furfural, glyoxal, acetaldehyde, 5-hydroxymethylfurfural, acrolein, levulinate esters, sugars, 2,5-furandicarboxylic acid, 2,5-furandicarboxylic aldehyde, urea, difurfural (DFF), or mixtures thereof, and the second monomer comprises furfuryl alcohol, glycerol, sorbitol, lignin, or mixtures thereof, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%.
    Type: Application
    Filed: May 25, 2012
    Publication date: March 27, 2014
    Applicant: EI DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W. Cobb, Vincent Galante, Marj Andrew Harmer, Vivek Kapur, Sharlene Renee Williams
  • Publication number: 20140079941
    Abstract: Disclosed are foam compositions and processes to form closed-cell phenolic foams. The foams comprises a continuous polymeric phase defining a plurality of cells, wherein the continuous polymeric phase comprises a phenol-formaldehyde resole derived from a phenol and formaldehyde, and wherein the plurality of cells comprises a plurality of open-cells and a plurality of closed-cells with an open-cell content measured according to ASTM D6226-5, of less than 50%. The foam composition also comprises a discontinuous phase disposed in at least a portion of the plurality of closed-cells, the discontinuous phase comprising 1,1,1,4,4,4-hexafluoro-2-butene.
    Type: Application
    Filed: May 25, 2012
    Publication date: March 20, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W. Cobb, Mark Andrew Harmer, Vivek Kapur, Ann Y. Liauw, Sharlene Renee Williams
  • Publication number: 20130338334
    Abstract: Described are sulfonated polyoxadiazole polymers with a high degree of sulfonation and having improved properties such as increased flame retardancy and dyeability. The polymers are useful in articles such as films, fibrids, fibers for floc, and fibers for textile uses, and other articles made from engineering plastics.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: MICHAEL W. COBB, SHARLENE RENEE WILLIAMS
  • Publication number: 20130338335
    Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Peter A. Brown, Justin W. Chan, Michael W. Cobb, Sharlene Renee Williams
  • Publication number: 20130338332
    Abstract: The invention is directed to sulfonated aromatic polyesters and methods of making said polymers. These polymers are useful as fibers and other articles. The polymer has a property of increased flame retardancy.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: Justin W. Chan, Michael W. Cobb, Surbhi Mahajan, Sharlene Renee Williams
  • Publication number: 20130338376
    Abstract: Described are sulfonated aromatic compounds and methods of making said compounds. The compounds are useful as monomers in a variety of polymers such as polyamides and polyesters, and can impart flame resistant properties.
    Type: Application
    Filed: June 12, 2013
    Publication date: December 19, 2013
    Inventors: JUSTIN W. CHAN, MICHAEL W. COBB, SHARLENE RENEE WILLIAMS
  • Publication number: 20130212780
    Abstract: A shaped article having a polymer having repeat units of Formula (I) and one or both of Formula (II) and (IIa): wherein M is a cation.
    Type: Application
    Filed: December 5, 2011
    Publication date: August 22, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Justin W. Chan, Michael W. Cobb, John Henry Henry McMinn, Sharlene Renee Williams
  • Publication number: 20130217854
    Abstract: Described is the preparation of sulfonated polyoxadiazole polymers with a high degree of sulfonation and good flammability properties. The polymers are useful in articles such as fibers.
    Type: Application
    Filed: December 5, 2011
    Publication date: August 22, 2013
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael W. Cobb, Alexander Anthony Marchione, John Henry McMinn, Sharlene Renee Williams